Heater



FIG. 1 is a front perspective view of a heater showing our design.

FIG. 2 is a front elevational view of the heater described in FIG. 1.

FIG. 3 is a rear elevational view of the heater described in FIG. 1.

FIG. 4 is a left side elevational view of the heater described in FIG. 1, the right side being a mirror image of the left side view; and,

FIG. 5 is a top plan view of the heater described in FIG. 1.

The bottom of the design is plain and unornamented. 

The ornamental design for a heater, as shown. 